<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
    <title>Bootstrap</title>
  <link rel="stylesheet" href="dd/common/bootstrap.min.css" >
    <style>
        [class*="col-"]{
            padding-top: 15px;
            padding-bottom: 15px;
            background-color: #eee;
            border: 1px solid #ddd;
        }
    </style>
</head>
<body>
  <div class="container">
      <div class="row">
          <div class="col-md-4">.col-md-4.col-md-4.col-md-4.col-md-4.col-md-4.col-md-4</div>
          <div class="col-md-4">.col-md-4</div>
          <div class="col-md-4">.col-md-4</div>
      </div>
  </div>
</body>
</html>
